With the rise of Windows system in 1990s, peer-to-peer network gradually disappeared, and CS mode became popular. In this master-slave architecture, compared with the client, the performance of the server is quite powerful, and ordinary Internet users cannot establish the server and maintain its operation. Most of the data is still stored in the client computer, but the server can continuously monitor the behavior of the client. From CS to platform cloud technology, the massive calculation and processing program is decomposed into more subprograms through the network, and then the system composed of servers analyzes and processes the calculation results and returns them to users. Above the basic platform is the server, which stores and processes all the basic data. All the information is concentrated on the platform, but the user knows nothing about it and doesn't know that it is the place where data is stored and processed. No intelligent server or company in Panoramic Prison on the Internet knows more about the civilization of all mankind than the Facebook platform. In the cloud era, the Fourth Amendment to the Constitution has completely failed, and the article "No citizen's person, residence, documents and property shall be searched or sealed up unreasonably" is no longer applicable in the online world. You know, all your emails are lying under Google's nose. If you are in love or sick, Facebook employees must be the first in the world to know. Richard Stallman famously said that open software is different from open source code. The important premise of openness is freedom, which is always the first, and the rest is only the source code. Once the cloud is locked, we have to give up all the data. In fact, we have become more and more dependent on the platform. Where is the road? Moglin believes that we should return to the peer-to-peer network, that is, split the existing platform. The idea is good, but it doesn't help. Centralized platform is convenient for data storage and processing, and cloud is the key embodiment of the transformation of Internet development direction, that is, service-oriented network architecture. So far, in my opinion, the only way out is to accept the existence of the platform. We should not disclose private information and personal life to major companies at the first time to prevent personal information from being abused or even infringing on personal rights and interests.